42 USC § 7508 - Guidance documents

---
identifier: "/us/usc/t42/s7508"
source: "usc"
legal_status: "official_prima_facie"
title: "42 USC § 7508 - Guidance documents"
title_number: 42
title_name: "THE PUBLIC HEALTH AND WELFARE"
section_number: "7508"
section_name: "Guidance documents"
chapter_number: 85
chapter_name: "AIR POLLUTION PREVENTION AND CONTROL"
subchapter_number: "I"
subchapter_name: "PROGRAMS AND ACTIVITIES"
part_number: "D"
part_name: "Plan Requirements for Nonattainment Areas"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(July 14, 1955, ch. 360, title I, § 178, as added Pub. L. 95–95, title I, § 129(b), Aug. 7, 1977, 91 Stat. 750.)"
---


# § 7508. Guidance documents

section 7408 of this titleAugust 7, 1977

The Administrator shall issue guidance documents under  for purposes of assisting States in implementing requirements of this part respecting the lowest achievable emission rate. Such a document shall be published not later than nine months after , and shall be revised at least every two years thereafter.

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**Source Credit**: (July 14, 1955, ch. 360, title I, § 178, as added Pub. L. 95–95, title I, § 129(b), Aug. 7, 1977, 91 Stat. 750.)